Forensic Files - Season 9 Episode 16 Cries Unheard No Witnesses. No Leads. No Problem.
Overview: A 19-year-old woman was found dead in her car; the scene had been staged to appear to be suicide. During their investigation, police discovered the victim was involved in a love quadrangle, giving several people motive to kill. The killer's identity would be revealed by a piece of evidence found in a suspect's trash. [also marked as S9:E18]